Answer:
The kinetic energy of the particle as it moves through point B is 7.9 J.
Explanation:
The kinetic energy of the particle is:
<u>Where</u>:
K: is the kinetic energy
: is the potential energy
q: is the particle's charge = 0.8 mC
ΔV: is the electric potential = 1.5 kV
Now, the kinetic energy of the particle as it moves through point B is:
![\Delta K = K_{f} - K_{i}](https://tex.z-dn.net/?f=%20%5CDelta%20K%20%3D%20K_%7Bf%7D%20-%20K_%7Bi%7D%20)
![K_{f} = \Delta K + K_{i} = 1.2 J + 6.7 J = 7.9 J](https://tex.z-dn.net/?f=%20K_%7Bf%7D%20%3D%20%5CDelta%20K%20%2B%20K_%7Bi%7D%20%3D%201.2%20J%20%2B%206.7%20J%20%3D%207.9%20J%20)
Therefore, the kinetic energy of the particle as it moves through point B is 7.9 J.
I hope it helps you!
Answer:
the answer is b, (the second one)
Explanation:
Answer:
All stars in the cluster are approximately the same age.
Explanation:
An open cluster refers to a group of around a thousand stars such that these stars are surrounded by the nebula. All-stars in the cluster are approximately the same age. Milky Way consists of more than 1000 such open clusters.
Examples of an open star cluster areas follows:
1. Beehive
2. Hyades
3. Pleiades
A compound machine is one that consists of a couple simple machines working together, like a wheelbarrow contains the lever, axle, and wheel. While a simple machine would just be those individually, or anything else that can be used for applying a force.<span />